The first half which saw both sides play some exciting football didn’t record any goal but it was Christian Schneuwly who finally broke the deadlock for the away side two minutes after recess with a directly converted free kick from a half-left position.
Striker Guillaume Hoarau however, drew Young Boys level from the spot in the 52nd minute.
The game then became a very tough encounter for the host who seriously needed victory to make history as Luzern denied them any scoring opportunity to make their dream a reality.
Cameroon striker Jean Pierre Nsame eventually became the hero in the crucial game when he got Young Boys the winner in the 89th minute to declare them champions.
The Bernese have already won the league title with 75 points in 32 matches.
Young Boys next fixture will be against FC Sion next week.